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Finding the Fourth Proportional to 8,129, 11,218.02 and 4,817.64

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Solution

The fourth proportional to 8,129, 11,218.02 and 4,817.64 is: 6,648.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,129 : 11,218.02 = 4,817.64 : x
  2. Step 2: Convert to fraction form
    8,129/11,218.02 = 4,817.64/x
  3. Step 3: Cross multiply
    8,129x = 11,218.02 × 4,817.64
  4. Step 4: Simplify right side
    8,129x = 54,044,381.87
  5. Step 5: Solve for x
    x = 54,044,381.87/8,129
  6. Step 6: Final answer
    x = 6,648.34

Related Problems

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.